1984 TEMPO & TOPAZ WITH CARBURETOR
Some carbureted models of this particular year Tempo/Topaz may exhibit signs of poor acceleration at steady speeds when the engine is warm. This could be caused by an inoperative fuel control solenoid. There is a new replacement fuel control solenoid, E43Z-9B998-A, available which is designed to correct this condition. To check the condition of the fuel solenoid, proceed as follows:
- Disconnect the electrical connector form the solenoid. Place a vacuum T valve with a vacuum gauge into the 5 / 32 vacuum hose between the solenoid and the carburetor.
- Start the engine and let it run at idle speed. Read the vacuum gauge. The gauge should read between 1.0-1.5 in. Hg of vacuum. Now apply a 12 volt source to the fuel control solenoid.
- With 12 volts applied to the solenoid, the vacuum gauge should read between 4.0-5.5 in. Hg of vacuum. If the vacuum gauge readings do not agree with these specifications, replace the fuel control solenoid with a new replacement fuel control solenoid E43Z-9B998-A available at your local Ford or Lincoln/Mercury dealer.